Editor
THis is very nice amplifier circuit , because High output , and voltage required is also not too large, and suitable for th subwoofer speaker.This circuit use IC TDA1102 , Minimum require voltage 6 volt and maximum voltage 16 volt with impedance 4 ohm . This circuit perfect those of you wear the speakers subwoofer especially in the small room , like in the car. See circuit subwoofer below :
